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multiple chevrons
Posted by:
Greg Calkins
(---.dhcp.embarqhsd.net)
Date: April 26, 2014 11:17AM
I want to try to do chevrons on 4 axis's but don't know how to start. all help is appreciated. Re: multiple chevrons
Posted by:
Jeremy Merkel
(---.tmodns.net)
Date: April 26, 2014 01:25PM
Dale Clemens book " Custom Rod Thread Art," is really helpful for this stuff, and I recommend investing in it.
To find the 4 axes: Measure the circumference using tape. Take the circumference and divide by 4, ie 32mm circumference would be 8mm spacing. This is one way to find where to mark the 4 different axes on the blank sit. Make marks on the tape this distance and wrap onto blank making sure you line up a mark on the 0 degree axis. Make your marks for each axis. You can use this method for 6 and 8 axes as well. To find spacing for your marks: For the 0 and 180 axis, make marks every 1/2 circumference, ex. 32mm circumference would be 16mm marks. For the 90 and 270 axis the first mark is 1/4 circumference then 1/2 until the last mark which is 1/4 again. Ex. 32mm circumference would be 8mm mark for the first mark, then 16mm until the last mark which is 8mm again. It is a lot of math and one mistake will mess up everything. The above mentioned book does a much better job explaining and if you don't have single wraps down before trying it can be very frustrating. A butt wrap tool also makes the process much easier. Re: multiple chevrons
Posted by:
bill boettcher
(---.dyn.optonline.net)
Date: April 26, 2014 02:52PM
I would suggest this book All of the wraps give step by step on how to do them
[www.mudhole.com] Bill - willierods.com Re: multiple chevrons
Posted by:
John E Powell
(168.169.226.---)
Date: April 28, 2014 10:06AM
Greg,
I'm going to make the assumption that you know how to lay out a 2-axis crosswrap like the chevron you mentioned.. If you can do this, it is very simple to turn this into a 4-axis wrap. On a two-axis wrap you will lay out, for instance, marks on the 0-axis at 1, 3, 5, and 7 inches and on the 180-axis marks at 2, 4, and 6 inches. Now to convert this to a 4-axis wrap mark the same points but on the opposite side of the blank starting at the 180-axis with 1, 3, 5, and 7" and then the 0-axis at 2, 4, and 6. (Note that you will calculate the actual spacing, I'm just using convenient whole numbers for the instructions) Now where the thread from the 0-axis and 180-axis spirals and crosses on the 90-axis and 270-axis is half way between 0-axis and 180-axis. So on the 90-axis and 270-axis you would have marks at 1.5, 2.5, 3.5, 4.5, 5.5, and 6.5 inches. In summary layout a complete 0/180 spacing on the 0-axis, then turn it over and do the same on the 180-axis. Then mark the midpoints on the 90 and 270 and you'll be good to go. A two-axis wrap is laid out on the 0-axis with intermediate points falling in between on the 180-axis. A four-axis wrap is laid out on the 0-axis and 180-axis with intermediate points falling in between on the 90-axis and the 270-axis. A six-axis wrap is laid out on the 0-axis, 120-axis, and 240-axis with intermediate points falling in between on the 60-axis, 180-axis, and the 300-axis. A eight-axis wrap is laid out on the 0-axis, 90-axis, 180-axis, and 270-axis with intermediate points falling in between on the 45-axis, 135-axis, 225-axis, and the 315-axis. Years ago,when I was young and foolish, I decorated a set of aluminum outriggers with 10-axis closed split diamond and inside cross box wrap (pretty simple wrap, nothing too fancy) on the smaller diameter center outriggers, and 12-axis on the larger side riggers that had a pretty hefty base pole diameter. The wraps were 30 and 36" long . I think I used a few 4oz spools of thread on them. The layout followed the same technique on incremental 72/36-axis and 60/30-axis. Edited 2 time(s). Last edit at 04/28/2014 01:40PM by John E Powell. Sorry, only registered users may post in this forum.
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